Made Electrodes
Q.
What are some examples of made electrodes? 250-52
A.
NEC Article 250-52 states, where the electrodes described in
Article 250-50 are not available one or more made electrodes shall be
used, and shall be
bonded together to form a single grounding
electrode system. These made electrodes maybe of the following:
metal underground piping system or underground tanks rod or
electrodes, ate electrodes, concrete encased
electrode, ground
ring, metal building structure.
Grounding Electrode Conductor Splicing
Splicing Grounding Electrode Conductor
Splicing Grounding Electrode Conductor
Grounding electrode conducts if any occupancy
Irreversible compression
Connector listed for the purpose
Exothermic
welded
source
Carefully follow manufacturer’s
instructions for installation
Q.
My grounding electrode conductor is 3ft.
short, may I splice it? 250-64 (c)
A.
NEC Article 250-64 (c) A grounding
electrode conductor may be spliced by using an
irreversible crimp listed for the purpose, or by
exothermic welding.
Q.
I have used an IMC conduit to protect my
grounding electrode conductor. It is not
connected at either end to a panel or box. Do I
have to bond both ends of the IMC or will
bonding one end meet code? 250-64 (e)
A.
Refer to above referenced diagram
Wet-Niche Fixture Grounding
SWIMMING POOLS UNDERWATER
LIGHTING
Q. When a nonmetallic conduit is used to supply the
forming shell of a 120 volt wet-niche fixture, what size
and type of conductor must be used along with
flexible-cord jacket to the approved deck box? 680-20
(b) (1)
A. Refer to above referenced diagram
Q.
Does the Code require me to bond metal piping
systems, and other metal parts of electrical equipment
on a hydromassage tub? 680-73
A.
Refer to above referenced diagram
Q. May grounding electrode conductor taps be made on
the outside of the disconnect?
A. Refer to above referenced diagram